Today is Y Combinator Demo Day, and I've compiled a list of Y Combinator startups from the current batch who have officially launched (27 of 47) and ranked them using the same methodology as this month's YC Index. It is extremely early days for these companies, this can give you a sense of who is getting attention and seeing early growth and we will use this as a benchmark for them in the index going forward. I will update this post as new companies are launched throughout the day.